Singh Saloni, Singh Hukum, Sharma Satish Kant, Nautiyal Raman
Forest Ecology and Climate Change Division, Forest Research Institute, PO New Forest, Dehradun, Uttarakhand, 248006, India.
Division of Forestry Statistics, Indian Council of Forestry Research and Education, PO New Forest, Dehradun, Uttarakhand, 248006, India.
Heliyon. 2021 Apr 24;7(4):e06859. doi: 10.1016/j.heliyon.2021.e06859. eCollection 2021 Apr.
Seasonal variations affect the rate of biomass accumulation in plants which is internally governed by biochemical metabolites. Studying the impact of atmospheric seasonal changes on biochemical parameters can improve our understanding of various plant species' physiological plasticity. Bamboos are a fast-growing group of woody grass species, widely distributed across tropical and sub-tropical regions of the world, and are an important species of the Indian subcontinent. Nevertheless, limited information is available on the seasonal response of biochemical's in bamboo species growing in ambient atmospheric circumstances. Therefore, we investigated the seasonal biochemical responses of clones Pantnagar (PNT) and Dhampur (DHM) to seasonal ambient atmospheric conditions. The concentrations of chlorophyll, protein, carbon, nitrogen, phosphorus, potassium, and magnesium in bamboo leaves were increased significantly (p < 0.025) in monsoon compared to summer and winter seasons. Carotenoid, total sugar and ascorbic acid contents were highest during winters and reduced significantly during monsoon. Proline content was highest in summer and reduced by 97% during monsoon, indicating effective adaptation to both clones' water-limited conditions. It was inferred that seasonal variation in atmospheric conditions significantly influenced the biochemical constituents of plants. This study provides a biochemical approach for screening potential bamboo species with adaptive nature for plantation purposes intended to mitigate climate change.
季节变化会影响植物生物量的积累速率，而这一过程受内部生化代谢产物的调控。研究大气季节变化对生化参数的影响，有助于我们更好地理解各种植物物种的生理可塑性。竹子是一类生长迅速的木本禾本科植物，广泛分布于世界热带和亚热带地区，也是印度次大陆的重要物种。然而，关于生长在自然大气环境中的竹子物种生化物质的季节响应，目前的信息有限。因此，我们研究了克隆品种潘特纳加尔（PNT）和丹布尔（DHM）对季节性自然大气条件的生化响应。与夏季和冬季相比，季风季节竹叶中的叶绿素、蛋白质、碳、氮、磷、钾和镁的浓度显著增加（p < 0.025）。类胡萝卜素、总糖和抗坏血酸含量在冬季最高，在季风季节显著降低。脯氨酸含量在夏季最高，在季风季节降低了97%，这表明两个克隆品种都能有效适应水分受限的条件。据推断，大气条件的季节变化显著影响了植物的生化成分。本研究提供了一种生化方法，用于筛选具有适应特性的潜在竹子品种，以用于旨在缓解气候变化的种植目的。
